<template>
    <div>
        <div :class="sidebarPage*1 === 1?'sidebar':'sidebar-2'">
            <el-menu :class="sidebarPage*1 === 1?'sidebar-el-menu':'sidebar-el-menu-2'"
                     :default-active="onRoutes"
                     :background-color="sidebarColor"
                     text-color="#bfcbd9"
                     active-text-color="#20a0ff"
                     router
                     :mode="sidebarPage*1===1?'vertical':'horizontal'"
                     :collapse="collapse"
                     unique-opened>
                <template v-for="item in items">
                    <template v-if="item.subs">
                        <el-submenu :index="item.index" :key="item.index">
                            <template slot="title">
                                <i :class="item.icon"></i>
                                <span slot="title">{{ item.title }}</span>
                            </template>
                            <template v-for="subItem in item.subs">
                                <el-submenu v-if="subItem.subs"
                                            :index="subItem.index"
                                            :key="subItem.index">
                                    <template slot="title">{{ subItem.title }}</template>
                                    <el-menu-item v-for="(threeItem, i) in subItem.subs"
                                                  :key="i"
                                                  :index="threeItem.index">{{ threeItem.title }}
                                    </el-menu-item>
                                </el-submenu>
                                <el-menu-item v-else
                                              :index="subItem.index"
                                              :key="subItem.index">{{ subItem.title }}
                                </el-menu-item>
                            </template>
                        </el-submenu>
                    </template>
                    <template v-else>
                        <el-menu-item :index="item.index" :key="item.index">
                            <i :class="item.icon"></i>
                            <span slot="title">{{ item.title }}</span>
                        </el-menu-item>
                    </template>
                </template>
            </el-menu>
        </div>
    </div>

</template>

<script>
    import bus from './bus';
    import { mapGetters } from 'vuex';

    export default {
        data() {
            return {
                collapse: false,
                items: [
                    {
                        icon: 'el-icon-lx-icon_huabanfuben',
                        index: 'index',
                        title: '系统首页'
                    },
                    {
                        icon: 'el-icon-lx-cascades',
                        index: 'table',
                        title: '基础表格'
                    },
                    {
                        icon: 'el-icon-lx-copy',
                        index: 'tabs',
                        title: 'tab选项卡'
                    },
                    {
                        icon: 'el-icon-lx-calendar',
                        index: '3',
                        title: '表单相关',
                        subs: [
                            {
                                index: 'form',
                                title: '基本表单'
                            },
                            {
                                index: '3-2',
                                title: '三级菜单',
                                subs: [
                                    {
                                        index: 'editor',
                                        title: '富文本编辑器'
                                    },
                                    {
                                        index: 'markdown',
                                        title: 'markdown编辑器'
                                    }
                                ]
                            },
                            {
                                index: 'upload',
                                title: '文件上传'
                            }
                        ]
                    },
                    {
                        icon: 'el-icon-lx-emoji',
                        index: 'icon',
                        title: '自定义图标'
                    },
                    {
                        icon: 'el-icon-pie-chart',
                        index: 'charts',
                        title: 'schart图表'
                    },
                    {
                        icon: 'el-icon-rank',
                        index: '6',
                        title: '拖拽组件',
                        subs: [
                            {
                                index: 'drag',
                                title: '拖拽列表'
                            },
                            {
                                index: 'dialog',
                                title: '拖拽弹框'
                            }
                        ]
                    },
                    {
                        icon: 'el-icon-lx-global',
                        index: 'i18n',
                        title: '国际化功能'
                    },
                    {
                        icon: 'el-icon-lx-warn',
                        index: '7',
                        title: '错误处理',
                        subs: [
                            {
                                index: 'permission',
                                title: '权限测试'
                            },
                            {
                                index: '404',
                                title: '404页面'
                            }
                        ]
                    }
                ]
            };
        },
        computed: {
            ...mapGetters(['sidebarPage', 'sidebarColor']),
            onRoutes() {
                return this.$route.path.replace('/', '');
            }
        },
        created() {
            // 通过 Event Bus 进行组件间通信，来折叠侧边栏
            bus.$on('collapse', msg => {
                this.collapse = msg;
                bus.$emit('collapse-content', msg);
            });
            // bus.$on('changeRadio', msg => {
            //     this.changeRadioInfo = msg;
            //     console.log(this.changeRadioInfo);
            //     // bus.$emit('changeRadio', msg);
            // });
        }
    };
</script>

<style scoped>
    .sidebar {
        display: block;
        position: absolute;
        left: 0;
        top: 70px;
        bottom: 0;
        overflow-y: scroll;
    }

    .sidebar::-webkit-scrollbar {
        width: 0;
    }

    .sidebar-el-menu:not(.el-menu--collapse) {
        width: 250px;
    }

    .sidebar-2 {
        display: block;
        position: absolute;
        left: 0;
        top: 70px;
        bottom: 0;
        width: 100%;
        height: 70px;
        z-index: 99;
    }

    .sidebar-el-menu-2:not(.el-menu--collapse) {
        width: 100%;
    }

    .sidebar > ul {
        height: 100%;
    }
</style>
